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P89LV51RB2 - 8-bit 80C51 3 V low power 16/32/64 kB fash microcontroller

Datasheet Summary

Description

The P89LV51RB2/RC2/RD2 are 80C51 microcontrollers with 16/32/64 kB flash and 1024 B of data RAM.

A key feature of the P89LV51RB2/RC2/RD2 is its X2 mode option.

Features

  • I I I I I I I I I I I I I 80C51 CPU 3 V operating voltage from 0 MHz to 33 MHz 16/32/64 kB of on-chip flash user code memory with ISP and IAP Supports 12-clock (default) or 6-clock mode selection via software or ISP SPI and enhanced UART PCA with PWM and capture/compare functions Four 8-bit I/O ports with three high-current port 1 pins (16 mA each) Three 16-bit timers/counters Programmable watchdog timer Eight interrupt sources with four priority levels Second DPTR register Low EMI mode (ALE inhi.

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Datasheet Details

Part number P89LV51RB2
Manufacturer NXP Semiconductors
File Size 411.32 KB
Description 8-bit 80C51 3 V low power 16/32/64 kB fash microcontroller
Datasheet download datasheet P89LV51RB2 Datasheet
Additional preview pages of the P89LV51RB2 datasheet.

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Full PDF Text Transcription

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www.DataSheet4U.com P89LV51RB2/RC2/RD2 8-bit 80C51 3 V low power 16/32/64 kB flash microcontroller with 1 kB RAM Rev. 05 — 15 December 2009 Product data sheet 1. General description The P89LV51RB2/RC2/RD2 are 80C51 microcontrollers with 16/32/64 kB flash and 1024 B of data RAM. A key feature of the P89LV51RB2/RC2/RD2 is its X2 mode option. The design engineer can choose to run the application with the conventional 80C51 clock rate (12 clocks per machine cycle) or select the X2 mode (six clocks per machine cycle) to achieve twice the throughput at the same clock frequency. Another way to benefit from this feature is to keep the same performance by reducing the clock frequency by half, thus dramatically reducing the EMI.
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